U.S. patent application number 14/352049 was filed with the patent office on 2014-09-18 for puncture repair liquid injection method and injection device.
This patent application is currently assigned to The Yokohama Rubber Co., LTD.. The applicant listed for this patent is THE YOKOHAMA RUBBER CO., LTD. Invention is credited to Takumi Sekiguchi.
Application Number | 20140261869 14/352049 |
Document ID | / |
Family ID | 48081736 |
Filed Date | 2014-09-18 |
United States Patent
Application |
20140261869 |
Kind Code |
A1 |
Sekiguchi; Takumi |
September 18, 2014 |
Puncture Repair Liquid Injection Method and Injection Device
Abstract
A puncture repair liquid injection method injects puncture
repair liquid into a tire by using a puncture repair liquid
injection device provided with a container having a liquid
containing portion containing a puncture repair liquid, along with
an outlet for discharging the puncture repair liquid, and an inlet
for introducing compressed air; an injection hose connected between
a tire valve of a wheel mounted on a tire and the outlet of the
container; and a compressor having a pressure adjuster for
selecting an air pressure. The method further comprises connecting
the injection hose between the tire valve and the outlet of the
container, connecting the compressor to the inlet of the container,
selecting a reduced air pressure as a pressurizing force by the
compressor by an operation of the pressure adjuster, and injecting
the puncture repair liquid into the tire by pressurizing the
container interior.
Inventors: |
Sekiguchi; Takumi;
(Hiratsuka-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
THE YOKOHAMA RUBBER CO., LTD |
Tokyo |
|
JP |
|
|
Assignee: |
The Yokohama Rubber Co.,
LTD.
Minato-ku, Tokyo
JP
|
Family ID: |
48081736 |
Appl. No.: |
14/352049 |
Filed: |
October 1, 2012 |
PCT Filed: |
October 1, 2012 |
PCT NO: |
PCT/JP2012/075369 |
371 Date: |
April 15, 2014 |
Current U.S.
Class: |
141/5 ;
141/38 |
Current CPC
Class: |
B29C 73/166 20130101;
B60S 5/04 20130101 |
Class at
Publication: |
141/5 ;
141/38 |
International
Class: |
B60S 5/04 20060101
B60S005/04; B29C 73/16 20060101 B29C073/16 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 11, 2011 |
JP |
2011-224056 |
Claims
1. A puncture repair liquid injection method comprising the steps
of: using a puncture repair liquid injection device comprising a
container having a liquid containing portion containing a puncture
repair liquid, an outlet for discharging the puncture repair
liquid, and an inlet for introducing compressed air; an injection
hose connected between a tire valve of a wheel mounted on a tire
and the outlet of the container; and a compressor having a pressure
adjuster for selecting an air pressure reduced relative to an air
pressure at a time of normal driving which is for filling the tire
air pressure; the method further comprising the steps of connecting
the injection hose between the tire valve and the outlet of the
container, connecting the compressor to the inlet of the container,
selecting a reduced air pressure as a pressurizing force by the
compressor by an operation of the pressure adjuster, and injecting
the puncture repair liquid into the tire by pressurizing the
container interior based on the reduced air pressure; the pressure
adjuster including a pressure adjusting valve, a pressure adjusting
button driving the pressure adjusting valve, and a lock mechanism;
the lock mechanism locking the pressure adjusting button in any
push-in position.
2. The puncture repair liquid injection method according to claim
1, wherein the air pressure at the time of normal driving is
between 200 kPa and 400 kPa and the reduced air pressure is 100 kPa
or less.
3. The puncture repair liquid injection method according to claim
2, wherein the reduced air pressure is between 30 kPa and 60
kPa.
4. (canceled)
5. (canceled)
6. The puncture repair liquid injection method according to claim
1, wherein the liquid containing portion of the container is
configured from a plastic material, and a thickness of the liquid
containing portion is 2.0 mm or less.
7. A puncture repair liquid injection device comprising: a
container having a liquid containing portion containing a puncture
repair liquid, and having an outlet for discharging the puncture
repair liquid and an inlet for introducing compressed air; an
injection hose connected between a tire valve of a wheel mounted on
a tire and the outlet of the container; and a compressor having a
pressure adjuster for selecting an air pressure reduced relative to
an air pressure at a time of normal driving for filling tire air
pressure; the pressure adjuster including a pressure adjusting
valve, a pressure adjusting button driving the pressure adjusting
valve, and a lock mechanism; the lock mechanism locking the
pressure adjusting button in any push-in position.
8. The puncture repair liquid injection device according to claim
7, wherein the air pressure at the time of normal driving is
between 200 kPa and 400 kPa and the reduced air pressure is 100 kPa
or less.
9. The puncture repair liquid injection device according to claim
8, wherein the reduced air pressure is between 30 kPa and 60
kPa.
10. (canceled)
11. (canceled)
12. The puncture repair liquid injection device according to claim
7, wherein the liquid containing portion of the container is
configured from a plastic material, and a thickness of the liquid
containing portion is 2.0 mm or less.
13. The puncture repair liquid injection device according to claim
7, wherein the liquid containing portion of the container comprises
a laminate film.
14. The repair liquid injection device according to claim 7,
wherein the liquid containing portion of the container comprises a
laminated structure including an intermediate layer having gas
barrier properties, an inner layer laminated on the inner side of
the intermediate layer, and an outer layer laminated on the outer
side of the intermediate layer.
15. The repair liquid injection device according to claim 14,
wherein the intermediate layer comprises a metal foil.
16. The repair liquid injection device according to claim 15,
wherein the intermediate layer further comprises a synthetic
resin.
17. The repair liquid injection device according to claim 14,
wherein the inner and out layers comprise a synthetic resin.
18. The repair liquid injection device according to claim 14,
wherein the inner and out layers comprise a same material.
19. The repair liquid injection device according to claim 14,
wherein the inner and out layers comprise different materials.
20. The repair liquid injection device according to claim 14,
wherein the inner or out layer comprises polyethylene, polyester,
or nylon.
21. The repair liquid injection device according to claim 14,
wherein the intermediate layer comprises at least one selected from
the group consisting of: ethylene vinylalcohol copolymers (EVOH),
polyamide (PA), polyvinylidene chloride (PVDC), polyvinylalcohol
(PVA), MX nylon (MXD6), or polyacrylonitrile resin (PAN).
22. The repair liquid injection device according to claim 7,
wherein the pressure adjusting button comprises a plate-shaped
pinch portion on a top surface side to enable twisting of the
pressure adjusting button.
Description
TECHNICAL FIELD
[0001] The present technology relates to a method and device for
injecting puncture repair liquid into a tire, and more specifically
relates to a puncture repair liquid injection method and injection
device that can easily inject a puncture repair liquid contained in
hand squeeze type container into a tire.
BACKGROUND
[0002] In recent years, when a tire mounted on a vehicle is
punctured, a puncture repair liquid is injected into the tire via a
tire valve to thereby temporarily repair the puncture, while, at
the same time, filling the tire with air.
[0003] Puncture repair liquid injection devices can be broadly
separated into hand squeeze types and pressurized delivery types.
With the hand squeeze type, the puncture repair liquid is contained
in a flexible container, and the puncture repair liquid is injected
into a tire by squeezing the container by hand (for example, see
Japanese Unexamined Patent Application Publication No.
2005-170486). Meanwhile, with the pressurized delivery type, the
puncture repair liquid is contained in a pressure resistant
container, and the puncture repair liquid is injected into a tire
by utilizing compressed air supplied from a compressor for filling
the tire air pressure (for example, see Japanese Unexamined Patent
Application Publication No. 2010-69847).
[0004] However, the operation of injecting the puncture repair
liquid with a hand squeeze type injection device is difficult for
an operator with less strength because the container containing a
puncture repair liquid must be squeezed by hand. This is
particularly true when the puncture repair liquid injection
operation is conducted at below freezing because the container
becomes even more difficult to squeeze as the viscosity of the
puncture repair liquid increases and the container hardens.
Meanwhile, with pressurized delivery type injection devices,
although an operator does not struggle to inject puncture repair
liquid when using air pressure, the container requires a pressure
resistant specification, and because this leads to a cost increase
of the injection device, such pressurized delivery type injection
devices are not commonly used currently.
SUMMARY
[0005] The present technology provides a puncture repair liquid
injection method and injection device that can easily inject
puncture repair liquid contained in a hand squeeze type container
can into a tire.
[0006] The puncture repair liquid injection method of the present
technology uses a puncture repair liquid injection device provided
with a container having a liquid containing portion, containing a
puncture repair liquid, along with an outlet for discharging the
puncture repair liquid, and an inlet for introducing compressed
air; an injection hose connected between a tire valve of a wheel
mounted on a tire and the outlet of the container; and a compressor
having pressure adjuster for selecting an air pressure reduced
relative to an air pressure at the time of normal driving. The
method further comprises the steps of connecting the injection hose
between the tire valve and the outlet of the container, connecting
the compressor to the inlet of the container, selecting a reduced
air pressure as a pressurizing force by the compressor by an
operation of the pressure adjuster, and injecting the puncture
repair liquid into the tire by pressurizing the container interior
based on the reduced air pressure.
[0007] The puncture repair liquid injection device of the present
technology includes a container having a liquid containing portion
that contains a puncture repair liquid and having an outlet for
discharging the puncture repair liquid and an inlet for introducing
compressed air, an injection hose connected between a tire valve of
a wheel mounted on a tire and the outlet of the container, and a
compressor having pressure adjuster for selecting an air pressure
reduced relative to an air pressure at the time of normal
driving.
[0008] With the present technology, when injecting the puncture
repair liquid contained in a hand squeeze type container into a
tire, the operation to inject the puncture repair liquid uses a
compressor that has a pressure adjuster to select an air pressure
that is reduced relative to the air pressure at the time of normal
driving, and the container interior is pressurized based on the
reduced air pressure. Therefore, in an operation to inject the
puncture repair liquid using an inexpensive hand squeeze type
container with a low pressure resistance, even an operator having
less strength can easily inject the puncture repair liquid into a
tire. Note that when an operator that does not require the aid of
the compressor desires to perform the injection operation by hand
squeezing, the injection operation by hand squeezing can be
performed by sealing the compressed air inlet of the container.
[0009] With the present technology, because the compressor is used
to fill the tire air pressure, the ability to fill a pneumatic tire
to its prescribed air pressure at the time of normal driving is
required. On the other hand, the pressurizing force on a hand
squeeze type container that has low pressure resistance is required
to be kept to the minimum necessary level. Therefore, it is
preferred that, with the puncture repair liquid injection device
described above, the air pressure at the time of normal driving is
between 200 kPa and 400 kPa, and the reduced air pressure is 100
kPa or less, and more preferably between 30 kPa and 60 kPa. By
this, the operation to fill the air pressure in a pneumatic tire
and the operation to inject the puncture repair liquid using a hand
squeeze type container can be effectively performed using a
compressor common to both.
[0010] In the present technology, it is preferred that a lock
mechanism be provided on the pressure adjuster. In other words,
when utilizing a compressor in the puncture repair liquid injection
operation using a hand squeeze type container, because maintaining
pressure adjustment using the pressure adjuster during the
injection operation is necessary, providing a lock mechanism raises
the operability. In this case, it is preferred that the pressure
adjuster include a pressure adjusting valve and a pressure
adjusting button that drives the pressure adjusting valve, and that
the lock mechanism locks the pressure adjusting button in any
push-in position.
[0011] Furthermore, it is preferred that, in the present
technology, the liquid containing portion of the container be
composed of a plastic material, and that the thickness of the
liquid containing portion be 2.0 mm or less. This type of container
is suited for use as a flexible hand squeeze type container and can
be manufactured inexpensively.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a side view illustrating an embodiment of the
present technology constituting a puncture repair liquid injection
device.
[0013] FIG. 2 is a plan view illustrating a compressor in the
puncture repair liquid injection device of FIG. 1.
[0014] FIG. 3 is a side view with a portion cut out illustrating a
container in the puncture repair liquid injection device of FIG.
1.
[0015] FIG. 4 is a cross sectional view illustrating a specific
example of a pressure adjuster (nonreduced pressure state) provided
with a lock mechanism.
[0016] FIG. 5 is a cross sectional view illustrating a specific
example of a pressure adjuster (reduced pressure state) provided
with a lock mechanism.
[0017] FIG. 6 is a bottom view illustrating a pressure adjusting
button of the pressure adjuster provided with a lock mechanism.
[0018] FIG. 7 is a side view illustrating a pressure adjusting
button of the pressure adjuster provided with a lock mechanism.
DETAILED DESCRIPTION
[0019] Detailed descriptions will be given below of a configuration
of the present technology with reference to the accompanying
drawings. FIGS. 1 to 3 illustrate an embodiment of the present
technology constituting a puncture repair liquid injection device.
In FIG. 1, 1 is a pneumatic tire, 2 is a wheel, and 3 is a tire
valve attached to the wheel.
[0020] As illustrated in FIG. 1, the puncture repair liquid
injection device of this embodiment is provided with: a container
10 configured from a liquid containing portion 11 that contains the
puncture repair liquid R and a cap 12 that screws onto an open
portion of the liquid containing portion 11, in which the cap 12 is
provided with an outlet 13 for discharging the puncture repair
liquid R and with an inlet 14 for introducing compressed air; an
injection hose 20 connected between the tire valve 3 of the wheel 2
mounted on the tire 1 and the outlet 13 of the container 10; and a
compressor 30 for supplying the compressed air.
[0021] As illustrated in FIG. 2, the compressor 30 is provided with
a device main body 31, a pressurization hose 32 for supplying
compressed air, a cord 33 connected to an external power supply,
and a plug 34. The device main body 31 of the compressor 30 is
provided with a power switch 35, a pressure gauge 36, and a
pressure adjusting button 37 (pressure adjuster) for selecting an
air pressure P2 that is reduced relative to an air pressure P1 at
the time of normal driving. More specifically, when the pressure
adjusting button 37 is pressed, the delivered amount of compressed
air supplied from the compressor 30 is reduced to become the air
pressure P2 that is reduced relative to the air pressure at the
time of normal driving P1. On the other hand, if the pressure
adjusting button 37 is not pressed, the preset air pressure at the
time of normal driving P1 is maintained.
[0022] As illustrated in FIG. 3, the container 10 is configured
from the liquid containing portion 11 and the cap 12, and is
configured such that the outlet 13 and the inlet 14 formed on the
cap 12 communicate with the liquid containing portion 11. Note
that, with the container 10, the outlet 13 and the inlet 14 may be
directly provided on the liquid containing portion 11 without being
provided on the cap 12. When the container 10 is configured from
the liquid containing portion 11 and the cap 12 as illustrated in
the drawing, the liquid containing portion 11 that contains the
puncture repair liquid R is stored in a state where the opening is
sealed by a sealing member (not illustrated), and after the sealing
member is peeled off to perform the injection operation of the
puncture repair liquid R, the cap 12 is attached to the opening of
the liquid containing portion 11. In either case, the container 10
is a flexible hand squeeze type and is configured so that the
liquid containing portion 11 can be squeezed to discharge the
puncture repair liquid R from the outlet 13.
[0023] A method for injecting the puncture repair liquid R into the
tire 1 using the injection device described above will be described
hereinafter.
[0024] When an operator with less strength is performing the
puncture repair liquid R injection operation while obtaining aid
from the compressor 30, first, the injection hose 20 is connected
between the tire valve 3 and the outlet 13 of the container 10, and
the pressurization hose 32 of the compressor 30 is connected to the
inlet 14 of the container 10. Next, the compressor 30 is operated,
the reduced air pressure P2 is selected as the pressurizing force
by the compressor 30 by pressing the pressure adjusting button 37,
and the puncture repair liquid R is injected into the tire 1 by
pressurizing inside the container 10 based on the reduced air
pressure P2.
[0025] When injecting the puncture repair liquid R contained in the
hand squeeze type container 10 into the tire 1 in this manner, the
compressor 30 provided with the pressure adjusting button 37 for
selecting the air pressure P2 reduced relative to the air pressure
at the time of normal driving P1 is used and, by pressurizing
inside the container 10 based on the reduced air pressure P2, the
puncture repair liquid R contained in the hand squeeze type
container 10 can be easily injected into the tire 1, even by an
operator with less strength.
[0026] Meanwhile, when the injection operation is performed by
manually squeezing by an operator that does not require aid from
the compressor 30, for example, a plug 15 (see FIG. 3) is attached
to the inlet 14 for compressed air of the container 10 to seal the
inlet 14. In addition, after the injection hose 20 is connected
between the tire valve 3 and the outlet 13 of the container 10, the
puncture repair liquid R injection operation can be performed by
squeezing the liquid containing portion 11.
[0027] Note that, instead of attaching the plug 15 to the inlet 14
of the container 10, a one-way valve can be placed on the inlet 14
that allows introduction of compressed air from the outside that
regulates the flow out of the puncture repair liquid R from the
inside.
[0028] In the injection device of puncture repair liquid R
described above, a pressure resistant specification is not required
for the container 10 because only the reduced air pressure P2 is
loaded on the container 10. Therefore, the liquid containing
portion 11 of the container 10 can be configured from a plastic
material, and the thickness of the liquid containing portion 11
thereof can be 2.0 mm or less. For example, a container formed from
a film material used for refilling liquid products such as shampoo
can be used. In doing so, a laminate film can be used for the
liquid containing portion 11. For example, a laminated structure
that includes an intermediate layer having gas barrier properties,
an inner layer laminated on the inner side of the intermediate
layer, and an outer layer laminated on the outer side of the
intermediate layer is suitable.
[0029] Aluminum foil and other metal foils can be used as
constituent material of the intermediate layer in addition to other
synthetic resins with low gas permeability such as ethylene
vinylalcohol copolymers (EVOH), polyamide (PA), polyvinylidene
chloride (PVDC), polyvinylalcohol (PVA), MX nylon (MXD6),
polyacrylonitrile resin (PAN), and the like. Meanwhile, synthetic
resins such as polyethylene, polyester, nylon, and the like can be
used as the constituent material of the inner layer and the outer
layer to secure mechanical strength and weatherability. It is
preferred that the inner layer and the outer layer are configured
from the same material, but they may be configured from mutually
different materials according to the required characteristics.
[0030] In the puncture repair liquid R injection device described
above, the compressor 30 is normally mounted on a vehicle, for
filling tire air pressure, and therefore, at the time of normal
driving requires an ability to fill the prescribed air pressure
into the pneumatic tire 1. Therefore, the air pressure at the time
of normal driving P1 is set in a range between 200 kPa and 400 kPa.
On the other hand, the pressurizing force on the hand squeeze type
container 10 that has low pressure resistance is required to be
kept to the minimum necessary level. Therefore, the reduced air
pressure P2 is set to 100 kPa or less, or more preferably set
within a range between 30 kPa and 60 kPa. By this, the operation to
fill the air pressure in a pneumatic tire 1 and the operation to
inject the puncture repair liquid R using a hand squeeze type
container 10 can be effectively performed using the compressor 30
common to both.
[0031] Here, when the air pressure at the time of normal driving P1
is less than 200 kPa, the air pressure filling operation into the
pneumatic tire 1 becomes difficult, and conversely, an air pressure
filling ability that exceeds 400 kPa is not required for passenger
vehicle tires and the like. Further, when the reduced air pressure
P2 exceeds 100 kPa, there is a risk that the hand squeeze type
container 10 may be damaged during the injection operation.
Particularly, when the reduced air pressure P2 is within the range
between 30 kPa and 60 kPa, the puncture repair liquid R injection
operation can be rapidly conducted while more securely preventing
damage to the hand squeeze type container 10.
[0032] In the puncture repair liquid R injection device described
above, a lock mechanism is provided on the pressure adjusting
button 37 of the compressor 30. More specifically, the pressure
adjusting button is configured such that when pressed once, the
pressure adjusting button 37 maintains a pressed state, and when
pressed a second time, the pressure adjusting button 37 releases
the pressed state. When utilizing the compressor 30 in the puncture
repair liquid R injection operation using a hand squeeze type
container 10, providing this type of lock mechanism raises the
operability because it is necessary to continue pressing the
pressure adjusting button 37 during the injection operation. The
lock mechanism is not limited to the configuration described above,
and may provide, for example, a jig on the device main body 31 of
the compressor 30 that holds the pressure adjusting button 37 in a
compressed state.
[0033] FIGS. 4 to 7 illustrate a specific example of the pressure
adjuster provided with the lock mechanism. In FIG. 4, a pipe 38,
connected to a compression device (not illustrated), is disposed on
the inner portion of the device main body 31 of the compressor 30,
and this pipe 38 is connected to the pressurization hose 32 via a
pressure gauge 36. A pressure adjusting valve 40 is installed on
the pipe 38.
[0034] The pressure adjusting valve 40 is provided with a sleeve 41
that communicates to the pipe 38, a cap 42 that screws onto the
sleeve 41, and a rod-like valve core 43 contained in the sleeve 41.
An O-ring 44 is disposed on the base end portion of the sleeve 41
to secure hermeticity between the sleeve 41 and the cap 42. An
opening 45 is formed in the top of the cap 42 such that the tip end
part of the valve core 43 protrudes from the opening 45. An
expanded portion 46 is formed on one portion in the longitudinal
direction of the valve core 43, and a ring-shaped rubber packing 47
is supported by the expanded portion 46. The outer diameter of the
rubber packing 47 is set to be larger than the inner diameter of
the opening 45. Meanwhile, a spring 48 is disposed on the periphery
of the base end portion of the valve core 43 so as to abut the
expanded portion 46, and the valve core 43 is biased toward the tip
end side by the spring 48. Therefore, the opening 45 of the cap 42
is normally obstructed by the rubber packing 47, such that pressure
is maintained within the pipe 38.
[0035] Meanwhile, a button storing portion 50, for storing the
pressure adjusting button 37 in the upper position of the pressure
adjusting valve 40, is formed on the device main body 31 of the
compressor 30. The button storing portion 50 forms a cylindrical
shape so as to accommodate the pressure adjusting button 37 and is
provided with a throttled portion 51 on the bottom side portion
thereof. Further, a pair of elastic plates 52 (see FIG. 6) that
extend along the pressure adjusting valve 40 are installed in two
locations equidistant on the periphery of the throttled portion
51.
[0036] The pressure adjusting button 37, on the back side thereof,
is provided with four short legs 61 that engage with the throttled
portion 51, four long legs 62 that extend along the pressure
adjusting valve 40, and a pressing portion 63 that abuts the valve
core 43 (see FIGS. 6 and 7). The four short legs 61 and the four
long legs 62 are alternatingly arranged on the periphery of the
pressure adjusting button 37 forming a circle. Engaging claws 64
are formed on the tip ends of each of the short legs 61 such that
the engaging claws 64 engage with the throttled portion 51 when the
pressure adjusting button 37 is not pressed in (see FIG. 4).
Further, engaging claws 65 are formed on each of the long legs 62
adjacent to the elastic plates 52. When the pressure adjusting
button 37 is not pressed in (see FIG. 4), the engaging claws 65
abut the elastic plates 52, and deform the elastic plates 52
elastically to the outside. Furthermore, when the pressure
adjusting button 37 is pressed in (see FIG. 5), the engaging claws
65 engage with a tip end portion of the elastic plates 52. The
pressing portion 63 has a cross-like shape when viewed planarly as
illustrated in FIG. 6, and therefore, when the pressure adjusting
button 37 is pressed in (see FIG. 5), the pressing portion 63 does
not obstruct the opening 45 of the cap 42 in the pressure adjusting
valve 40 such that a flow path for air is secured.
[0037] A plate-shaped pinch portion 66 is formed on the top surface
side of the pressure adjusting button 37, and the operation of the
pinch portion 66 allows the pressure adjusting button 37 to twist.
Therefore, operating the pinch portion 66 to pivot the pressure
adjusting button 37 allows the engagement by the engaging claws 65
to be released. Further, the engaging claws 65 have a triangular
pyramid shape and form a triangular shape when viewed either
planarly or laterally. After the engagement by the engaging claws
65 are released and the pressure adjusting button 37 is re-pivoted,
the engaging claws 65 can be returned the position where the
elastic plates 52 are pressed wide, as in FIG. 4.
[0038] In the pressure adjuster described above, when the pressure
adjusting button 37 is pressed, the valve core 43 of the pressure
adjusting valve 40 is pressed in by the pressing portion 63 of the
pressure adjusting button 37 so as to reduce the pressure inside
the pipe 38 of the air compressor 30. Particularly, when the
pressure adjusting button 37 is pressed in to a position where the
engaging claws 65 of the long legs 62 engage the tip end portions
of the elastic plates 52, a reduced pressure state is maintained
even when removing the finger from the pressure adjusting button
37.
[0039] Providing this type of lock mechanism composed of elastic
plates 52 and long legs 62 provided with engaging claws 65, onto
the pressure adjuster allows a reduced pressure state to be easily
maintained in the air compressor 30 during the puncture repair
liquid R injection operation using a hand squeeze type container
10.
[0040] In the embodiment described above, a description was given
in which the pressure adjusting button 37 is provided on the device
main body 31 as the pressure adjuster of the compressor 30, but in
the present technology, a pressure adjusting valve can be provided
on the pressurization hose 32 as the pressure adjuster of the
compressor 30, and the lock mechanism can be provided on this type
of pressure adjusting valve.
[0041] Either way, because the puncture repair liquid injection
device according to the present technology does not require a
complex configuration, a puncture repair liquid injection method
and injection device that has a high degree of versatility can be
provided.
[0042] The above was a detailed description of a preferred
embodiment of the present technology, but it should be understood
that various changes, substitutions, and replacements can be made
to this embodiment, provided that they do not deviate from the
spirit and scope of the present technology as specified in the
attached scope of claims.
EXAMPLES
[0043] Using the puncture repair liquid injection device
illustrated in FIG. 1, the puncture repair liquid injection
operation was carried out in actuality according to the following
procedure. Note that the container is a hand squeeze type container
provided with a liquid containing portion made of plastic having a
thickness of 1.0 mm, and the volume of the puncture repair liquid
is 450 ml.
Working Example 1
[0044] In a room temperature (20.degree. C.) operating environment,
a reduced air pressure (40 kPa) was selected as the pressurizing
force by the compressor by the operation of the pressure adjuster,
and the puncture repair liquid was injected into a tire by
pressurizing the container interior based on the reduced air
pressure. As a result, injection was completed in approximately 35
seconds. This operation time is similar to the operation time
performed by manual squeezing. Further, loading the above air
pressure into the hand squeeze type container did not cause
damage.
Working Example 2
[0045] In a low temperature (-30.degree. C.) operating environment,
a reduced air pressure (40 kPa) was selected as the pressurizing
force by the compressor by the operation of the pressure adjuster,
and the puncture repair liquid was injected into a tire by
pressurizing the container interior based on the reduced air
pressure. As a result, injection was completed in approximately 6
minutes. The injection operation is essentially impossible to
perform manually at this type of low temperature. Further, loading
the above air pressure into the hand squeeze type container did not
cause damage.
Working Example 3
[0046] In a room temperature (20.degree. C.) operating environment,
a reduced air pressure (60 kPa) was selected as the pressurizing
force by the compressor by the operation of the pressure adjuster,
and the puncture repair liquid was injected into a tire by
pressurizing the container interior based on the reduced air
pressure. As a result, injection was completed in approximately 25
seconds. This operation time is shorter than the operation time
when performed manually. Further, loading the above air pressure
into the hand squeeze type container did not cause damage.
[0047] In all of the Working Examples 1 to 3, the puncture repair
liquid contained in a hand squeeze type container was able to be
easily injected into the tire.
* * * * *